| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbon black-containing polypropylene-based composition having electroconductivity and an excellent coating close adhesion without requiring the coating with a primer, and also excellent in ductility and impact resistance, and an injection-molded article consisting of the same. SOLUTION: This carbon black-containing polypropylene-based resin composition is provided by blending a polypropylene-based composition containing (A) 10 to 68 wt.% specific crystalline propylene-ethylene block copolymer or specific polymer blend, (B) 1 to 30 wt.% specific modified polyolefin resin, (C-1) 15 to 25 wt.% copolymer rubber of at least 1 kind of an olefin selected from a group consisting of propylene and a≥4Cα-olefin, with ethylene, (C-2) 1 to 10 wt.% vinyl aromatic compound-containing rubber and (D) 15 to 25 wt.% inorganic filler, with (E) 1 to 15 pts.wt. electroconductive carbon black based on 100 pts.wt. above resin composition. The injection-molded article of the same is also provided. COPYRIGHT: (C)2008,JPO&INPIT
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